Ferromagnetic frustration in ternary nitride ZnFe3N. Issue 47 (27th November 2020)

• Record Type: Journal Article
• Authors: Wang, W.; Kan, X. C.; Liu, X. S.; Zhang, Z. T.; Rehman, K. M. U.; Liu, C. C.; Shezad, M.
• Is Part Of: Physical chemistry chemical physics. Volume 22:Issue 47(2020)
• Page Start: 27770
• Page End: 27780
• Publication Date: 2020-11-27
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/d0cp03957h
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : As a new antiperovskite nitride, ZnFe3 N was synthesized and characterized by almost completely substituting iron atoms at corner positions of γ′-Fe4 N. Abstract : As a new antiperovskite nitride, ZnFe3 N was synthesized and characterized by almost completely substituting iron atoms at corner positions of γ′-Fe4 N. The magnetic interactions of the system with the space group Pm 3̄ m are fully investigated. The critical behavior was investigated based on the measured magnetic data around the ferromagnetic phase transition temperature. In this work, the values of critical exponents ( β, γ and δ ) were obtained systematically using the Kouvel–Fisher method in the critical region. The Widom scaling law ( δ = 1 + γ β −1 ) and the scaling equation ( m = f ± ( h )) were used to reveal the reliability of these values. The values of the critical exponents ( β = 0.325, γ = 1.228, and δ = 4.778) are different from those predicted by the three-dimensional (3D) Heisenberg model and mean-field model, and are very close to those of the 3D-Ising model. Combined with ESR analysis, the spin clusters induced by changes in chemical bonds are considered to be the cause for the existence of an anisotropic short-range ordered state in this ferromagnetic system.